EK is invariably great, but Daz says that the Koolance performas just as well, and is perhaps easier to get- I know NCIx has had them in stock. The EK is being shipped to me right now, so I can't speak to performace yet.

I have a Koolance block on my 7970. This has been working very well indeed, zero installation issues and typical koolance quality....

TBH, I really see no real difference between most waterblocks (full coverage)....
They will either be microfin or channel, microfin will create a higher flow restriction at the expense of perhaps slightly better cooling, IMO...

I have a Koolance block on my 7970. This has been working very well indeed, zero installation issues and typical koolance quality....

TBH, I really see no real difference between most waterblocks (full coverage)....
They will either be microfin or channel, microfin will create a higher flow restriction at the expense of perhaps slightly better cooling, IMO...

I'll see if I can find a photo and post back...

Agreed. Just get whatever you can find stock of and/or find visually appealing.

From cooling performance point of view: Internal design of full cover blocks are pretty much the same, so there is no leader in performance. It is also true for recent crop of CPU blocks as everybody 'standardizes' on micro-channel design with impingement plate.